By Topic

Performance analysis of link adaptation in wireless personal communication systems

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$33 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

2 Author(s)
F. Khan ; Inst. Nat. des Telecommun., Evry, France ; D. Zeghlache

We analyze the link adaptation (LA) performance of a wireless personal communication system supporting two types of voice connections, full-rate and half-rate. Full-rate connections are used when the channel conditions are poor. When the channel conditions are good a full-rate connection is switched to a half-rate for improving spectral efficiency. For analysis simplicity, we consider flat uniform propagation conditions where, for a given propagation exponent, the received powers are determined by distances. Using this propagation model, users in the outer region of the cell will use full-rate channels while users in the proximity of the base station will use half-rate channels. The numerical results are extracted by forming a multi-dimensional Markov chain model of the proposed scheme and are compared with those obtained through a comprehensive computer simulation for call blocking probability, hand-off failure probability and carried traffic. A 42% increase in capacity is achieved when 75% of the users can use halfrate channels

Published in:

Communications, 1997. ICC '97 Montreal, Towards the Knowledge Millennium. 1997 IEEE International Conference on  (Volume:3 )

Date of Conference:

8-12 Jun 1997